DESCRIPTION. 



Superior wings above black, with a broad ful- 

 vous sub-marginal band, which is bifid at the 

 costal margin, having the exterior division termi- 

 nated by a white spot, and the inner division by 

 a pale yellow one; between the band and the 

 base of the wing, are two fulvous transverse 

 spots ; costal rib near the base, with yellow varie- 

 gations : inferior wings above black, with a broad 

 fulvous sub-marginal band, and on the black 

 margin is a series of six or seven small sublunate 

 purplish-ophalescent spots ; all the wings beneath 

 are blackish, with very numerous transverse 

 blacker lineations, some of which are undulated, 

 and deep velvet black ; a common pale brownish 

 broad sub-marginal band also with the blackish 

 lineations : antennse yellow at the tip of the club : 

 venter dull whitish. 



OBSERVATIONS. 



This pretty species we observed several times 

 in the North- West Territory, during the progress 

 of the late expedition under the command of 

 Major S. H. Long, over that region. In the 

 vicinity of Fort William, an establishment of the 



PLATE XXVII. 



